r=4.2/2

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Solution for r=4.2/2 equation: 



r=4.2/2

We move all terms to the left:

r-(4.2/2)=0

We add all the numbers together, and all the variables

r-(+4.2/2)=0

We get rid of parentheses

r-4.2/2=0

We multiply all the terms by the denominator


r*2-4.2=0

Wy multiply elements

2r-4.2=0

We move all terms containing r to the left, all other terms to the right

2r=4.2

r=4.2/2

r=2+0.2/2

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